Gas lighter



FIG. 1 is a front view of a gas lighter showing my new design;

FIG. 2 is left side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a right side view thereof. 

The ornamental design for the gas lighter, as shown and described. 